We are using tally 9.0 and it happened that Tally had a duplicate entry from two machines on the network and since it has duplicate item create, if we open the Tally it gives an error that it can not open due to duplicate error and we should debug.

We tried restoring, backing up and rewriting the data, but still the problem persists. Any assistance?

I have Tally ERP 9.0. i have created 1 item twice in the same name and tally has accepted the same, and now i am not able to open my company. I am facing an error debug location (ID:26133) is duplicated in company..
Kindly suggest me what can i do..